*Topic 3 Polarity

Presentation

•

Science

•

11th Grade

•

Easy

•

NGSS

HS-PS1-1, HS-PS2-6, HS-PS1-2

Standards-aligned

Marisa Macrides

Used 2+ times

FREE Resource

21 Slides • 18 Questions

As you work through this presentation, please fill out your notes sheet and answer the questions as you go.

Recall: The position of an element on the periodic table determines its electronegativity.

Multiple Select

A molecule is polar when.... (Choose all that apply)

When the central atom has no lone pairs

When the central atom has 1 or more lone pairs

When the molecule has 1 or more polar bonds

Multiple Choice

What is the reason the shared electrons are held closer to fluorine in the polar molecule H-F?

Fluorine has a lower electronegativity

Hydrogen has a higher electronegativity

Fluorine has a higher electronegativity

Both atoms share electrons equally

Multiple Choice

This is an example of a __________ bond.

non-polar covalent

polar covalent

ionic

metallic

Multiple Choice

True or False: All diatomic molecules are nonpolar.

True

False

Multiple Choice

What is the primary factor that determines whether a molecule is polar or nonpolar?

The size of the molecule

The molecular weight

The shape of the molecule and the distribution of charge

The number of electrons

Multiple Choice

What are the general rules to determine if a molecule is polar or nonpolar?

Asymmetrical molecules are always nonpolar

Asymmetrical molecules are always polar

Take your time working through these examples! They will take you step by step on how to determine the polarity of molecules.

Draw the Lewis Diagram on your notes sheet on your own first, then click next to check if you drew them correctly!

Multiple Choice

Based on the two Lewis Structures you drew, which molecule is Polar?

H₂

Draw the Lewis Diagram on your notes sheet on your own first, then click next to check if you drew them correctly!

Multiple Choice

Based on the two Lewis Structures you drew, which molecule is Polar?

CO₂

COS

Draw the Lewis Diagram on your notes sheet on your own first, then click next to check if you drew them correctly!

Recall: Did having a lone pair of electrons on the central atom make the molecule polar or nonpolar?

Multiple Choice

H₂O and NH₃ have at least one lone pair of electrons on the central atom, so the molecules must be...

Polar

Nonpolar

Draw the Lewis Diagram on your notes sheet on your own first, then click next to check if you drew them correctly!

Multiple Choice

Which molecule is asymmetrical and therefore polar?

CH₄

CH₃Cl

Review Questions

Labelling

Label the molecule accordingly.

Drag labels to their correct position on the image

Higher electronegativity

Lower electronegativity

Multiple Choice

The electrons in a polar covalent molecule are shared...

Evenly

Unevenly

Electrons are not shared

None of the Above

Multiple Choice

Classify the following molecule.

polar

nonpolar

Multiple Choice

Classify the following molecule.

polar

nonpolar

Multiple Choice

Why is the molecule nonpolar?

There are lone pairs on the central atom.

There are different types of elements bonded to the central atom.

There are no lone pairs on the central atom and all of the atoms bonded to the central atom are the same. (symmetrical)

Multiple Choice

Classify the following molecule.

polar

nonpolar

Multiple Choice

Why is the molecule polar?

There is a lone pair on the central atom, creating a negative side to the molecule.

There are different types of elements bonded to the central atom.

There are no lone pairs on the central atom and all of the atoms bonded to the central atom are the same.

Poll

How confident do you feel about this topic now?

Very confident

Somewhat confident

Not confident

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*Topic 3 Polarity

​As you work through this presentation, please fill out your notes sheet and answer the questions as you go.

Recall: The position of an element on the periodic table determines its electronegativity.

Take your time working through these examples! They will take you step by step on how to determine the polarity of molecules.

Review Questions

​As you work through this presentation, please fill out your notes sheet and answer the questions as you go.

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science

As you work through this presentation, please fill out your notes sheet and answer the questions as you go.

As you work through this presentation, please fill out your notes sheet and answer the questions as you go.